完成离线消息发送和上线获取离线消息

Hotfix/Gate/Handler/Inner/Chat2G_ChatMessageHandler.cs

@@ -15,14 +15,34 @@ public class Chat2G_ChatMessageHandler : Route<Scene, Chat2G_ChatMessage>
         {
             Message = message.Message,
         };
-        
+        var idList = message.IdList;
+        bool isAll = !(idList != null && idList.Count > 0);
 
         var gateUnitManage = scene.GetComponent<GateUnitManageComponent>();
 
-        foreach (var session in gateUnitManage.ForEachUnitSession())
+        if (isAll)
         {
-            session.Send(chatMessage);
+            foreach (var session in gateUnitManage.ForEachUnitSession())
+            {
+                session.Send(chatMessage);
+            }
         }
+        else
+        {
+            if (idList == null) return;
+            foreach (var (_, gateUnit) in gateUnitManage.Units)
+            {
+                if (gateUnit.AccountID > 0 && idList.Contains(gateUnit.AccountID))
+                {
+                    Session session = gateUnit.Session;
+                    if (session != null)
+                    {
+                        session.Send(chatMessage);
+                    }
+                }
+            }
+        }
+
 
         await FTask.CompletedTask;
     }